Abstract:
A catalytic converter having a housing holding upstream and downstream catalytic material carrying substrates or bricks includes a ring located between the substrates, the ring having a gap therein for receipt of a mid-bed oxygen sensor. The ring traps a layer of insulating material between the ring and the converter housing or shell surface surrounding the inter-substrate gap. The ring is coupled to the housing at a plurality of embossments either by welding or mechanical couplings.
Abstract:
A catalytic converter (Fig. 1) having a housing (12) holding upstream and downstream catalytic material (14,16) carrying substrates or bricks includes a ring (40) located between the substrates (14,16), the ring (40)having a gap therein for receipt of a mid-bed oxygen sensor (via 20). The ring (40) traps a layer of insulating material (42) between the ring (40) and the converter housing (12) or shell surface surrounding the inter-substrate gap. The ring (40) is coupled to the housing (12) at a plurality of embossments 44) either by welding or mechanical couplings.